Home / 3,428.51-4,731.33-2,381.18

Finding the Fourth Proportional to 3,428.51, 4,731.33 and 2,381.18

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Solution

The fourth proportional to 3,428.51, 4,731.33 and 2,381.18 is: 3,286.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.51 : 4,731.33 = 2,381.18 : x
  2. Step 2: Convert to fraction form
    3,428.51/4,731.33 = 2,381.18/x
  3. Step 3: Cross multiply
    3,428.51x = 4,731.33 × 2,381.18
  4. Step 4: Simplify right side
    3,428.51x = 11,266,124.71
  5. Step 5: Solve for x
    x = 11,266,124.71/3,428.51
  6. Step 6: Final answer
    x = 3,286.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.